Senior UX Software Engineer in Cambridge

Charles River Analytics, a GRVTY company, creates solutions and technology to tackle the world’s most challenging problems. Our team of technological entrepreneurs works together to push at the forefront of enhanced AI, robotics, smart sensing, and human-centered computing. The resulting research and development help to continuously advance government programs and discover new possibilities in the commercial marketplace. At Charles River, we take great pride in our success at attracting and retaining the most talented and creative problem-solvers in our field. Now, as part of GRVTY, we offer the same trusted capabilities with increased organizational depth and expanded capacity across mission-critical national security domains.

This is an excellent opportunity to lead, mentor, and grow a high-performing engineering team to design and develop robust, aesthetic software solutions with a particular focus on user experience (UX) and human-computer interaction. We are looking for candidates who want to continue to use their technical skills while providing technical leadership across projects. You will work collaboratively with a cross-functional team of UX research leads, software engineers, subject matter experts, and customers, using modern web, desktop, and mobile frameworks to architect and develop cutting-edge visualizations and interactions. You will use your experience to shape the engineering direction in terms of feasibility, ideal technology, optimization, and other system-level details.

What will you do?

• Provide engineering leadership (mentoring, code reviews, task definition and direction, technology selection, architecture definition, process improvement, etc.) across projects that range in scope and complexity.
• Work with Principal Investigators to understand, define, and prioritize technical requirements and track them effectively in GitLab.
• Understand and execute on the entire software development lifecycle (requirements management, development, merge requests, testing, deployment) and mentor junior engineers in their understanding and execution.
• Architect scalable, robust software systems in response to customer and program requirements.
• Build direct, collaborative relationships with our customers and external partners.
• Develop responsive user-facing applications, whether that be with JavaScript, Unity, or other relevant frameworks.
• Lead technical elements of proposals for new research and development programs.

What technologies do we use?

• API/Data Services: HTTP, GraphQL, REST, Swagger, ActiveMQ, gRPC, WebSockets.
• Back-end: NodeJS, Python, C#, Java.
• Spring Cloud/Virtualization: Docker, AWS EC2, VM Ware, OpenShift.
• Databases: Neo4j, Postgres, MongoDB, ElasticSearch, Redis, MySQL, MS SQL Server.
• Development workflow: Vite, npm, yarn, gradle.
• Documentation: Docusaurus, JS Doc, Sphinx.
• Front-end: React, React Native, modern Javascript (es6, require, etc.), HTML5, CSS3, Unity/C#.
• Issue Tracking: GitLab.
• Operating Systems: Windows, Linux, OSX.
• Testing: Storybook, Playwright, Jasmine, Mocha, Jest, Protractor, NUnit.
• Version Control: Git.
• Web Mapping APIs: Cesium, GeoJson, Mapbox, OpenLayers, Leaflet.
• XR Hardware: Oculus Quest, Hololens, HTC Vive or other Steam VR HMDs.

What do you need?

• Ability to work in a Hybrid (60%) onsite capacity in Cambridge, Massachusetts.
• U.S. Citizenship.
• Bachelor's or Master’s degree in Computer Science, Engineering, or related field.
• 7+ years of professional software development experience, ideally with exposure to the full software development lifecycle.
• Experience in DoD preferred.
• Willingness to occasionally travel to support customer briefings and integration/test events.
• Experience with (preferably leading) test and evaluation events.
• Familiarity with DevSecOps practices across the entire software development lifecycle.
• Understanding of working with multi-performer teams on large-scale integration efforts.

Salary Range $160,000 - $210,000

The above projected salary range is an estimate based on the internal job level(s) for which this role is being considered. The final salary will be decided after careful evaluation of the individual's work experience, education, and overall qualifications. This range does not include the substantial total rewards, as listed below, that you will also be eligible for as an employee at Charles River Analytics.

Why Charles River?

Charles River Analytics thrives on collaboration and values each team member. We offer competitive compensation plus bonus and retirement contribution, with an attractive benefits package including 100% employer-paid medical and dental insurance, as well as vision, life, and disability insurance, paid maternity/paternity leave, tuition reimbursement, monthly gym allowance, free parking, generous paid time off, and a casual environment. We offer tremendous flexibility and value work-life balance. We are also accessible by public transportation. Charles River became an employee-owned company in 2012, to set the stage for the next-generation of innovation, service, and growth in R&D. As we entered 2026, we joined forces with GRVTY, gaining the scale and capacity to transition, field, and sustain our innovations faster and more effectively than ever before.